Mental harassement,black mail and humilation

Hello sir.. I am clg student...going to cmplte my 2nd year this mnth..i went into clg approx 2years.. I became friend with a guy who seems to belongs from a very good family and behaved as if he is well wisher.. Den there ws some misundrstndng btwn me and a guy i use to in love with.. So my well wisher created so much prblms so that finally i cn finish it off evrything with him..nd even he did that... Daily he use to call his friends nd make me sit with them and they use to force me to start a rltnshp with my well wisher bt i really dn't feel like that.. Then one dy i gt to knw that my well wisher has told evrybody in the clg that i am his gf nd we r in a rltnshp.. Evryone laughed make fun of us..nd insulted me too because of my well wisher..then i started ignoring him so he said may time nd said pls forgive for last time even his frnds also forced me..i forgived him.. Then aftr new year 2016 i ws in rltnshp wid my same guy with whom i did brk up so evryone of them started again u r nt doing right u will cry one day nd says shit abt him..so i quited talking to evryone.. Den my well wisher use to drink nd call me i am attempting suicide if uh won't talk to me.. He use toh call my frnds nd tell them i am attempting suicide because of her..cz i didn't gt into a rltnshp with him... then i also gt scared wt if does anything to his slf everybody will blame me... So he humilated me in front of the whole clg.. He black mailed me to talk to him.. Den aftr all this i dn't use to talk to him much so one dy he said he had cancer nd played with my emotions alot i cried gv him lots of sympathy nd he thought i love hi cz i care fo him..i cried fo him..bt it wasn't like that i ws totally fallen for my partner den he again told if uh won't tell me evrything abt ur life as uh use to do i will finish myself and all shits den again i got scared nd agreed with his demands.. Den slowly i maked him rlzed that i love someone else nd i am happy with him.. Den one dy kahin se he gt to knw dt ke finally m single nd my bonding is gettng strong with any other guy then he started speaking shit abt me nd that guy.. It ws like i wasn't even to go clg because of all this... Finally i met a guy who took a stand for me.. Nd fighted with them..they simply insulted him badly vo b pyar se..n den my frnd came to sy anything in my favour they slapped that girl..nd again created a scn nd humilated in front of the whole clg..on a road those guys use to abused me nd my frnd called as sluts nd shits... Nd they didn't accpted their mistakes nt evn said sorry Sir i am getting very irritated of all this.. I am tried nw nd dn't evn feel protected...so cn i file again these guys of mental haassement,black mail nd humailation??